Image Deformation and IGRT

Sophisticated IGRT (Image Guided Radiotherapy) techniques require us to deform CT, MR and US images to match previous images of the same patient or to match an atlas in order to transfer atlas-embedded information back to a specific patient's images. Although no one has solved this complex issue in the general case, specific solutions enable us to treat some tumors more effectively than ever before.

The TomoTherapy® treatment system provides customized radiation therapy treatment delivery for each patient, targeting tumors with many small radiation "beamlets" that can be oriented at any angle, and adapted daily based on the patient's anatomy on each day of treatment.